man yal fu ckers are getting all sciencey and technical......could always take a toilet paper rolla nd stuff alot of dryer sheets in the middle then use a rubber band and put one over each end....blow your hit in that and it will neutralize the smell of the smoke....but then you gotta explain why your room smells like fresh laundry (being a teen it might be a lil hard to explain a clean smelling room lol)